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Properties

Label 32.0.152...488.1
Degree $32$
Signature $[0, 16]$
Discriminant $1.527\times 10^{77}$
Root discriminant \(258.22\)
Ramified primes $2,17$
Class number not computed
Class group not computed
Galois group $C_{32}$ (as 32T33)

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Normalized defining polynomial

sage: x = polygen(QQ); K.<a> = NumberField(x^32 + 544*x^30 + 134096*x^28 + 19809216*x^26 + 1954391400*x^24 + 135851917760*x^22 + 6839621551840*x^20 + 252479744142208*x^18 + 6840623067852948*x^16 + 134829672062029120*x^14 + 1896195478908718624*x^12 + 18420184652256123776*x^10 + 117428677158132789072*x^8 + 452599597791669697152*x^6 + 915975376483141053760*x^4 + 732780301186512843008*x^2 + 97322383751333736962)
 
gp: K = bnfinit(y^32 + 544*y^30 + 134096*y^28 + 19809216*y^26 + 1954391400*y^24 + 135851917760*y^22 + 6839621551840*y^20 + 252479744142208*y^18 + 6840623067852948*y^16 + 134829672062029120*y^14 + 1896195478908718624*y^12 + 18420184652256123776*y^10 + 117428677158132789072*y^8 + 452599597791669697152*y^6 + 915975376483141053760*y^4 + 732780301186512843008*y^2 + 97322383751333736962, 1)
 
magma: R<x> := PolynomialRing(Rationals()); K<a> := NumberField(x^32 + 544*x^30 + 134096*x^28 + 19809216*x^26 + 1954391400*x^24 + 135851917760*x^22 + 6839621551840*x^20 + 252479744142208*x^18 + 6840623067852948*x^16 + 134829672062029120*x^14 + 1896195478908718624*x^12 + 18420184652256123776*x^10 + 117428677158132789072*x^8 + 452599597791669697152*x^6 + 915975376483141053760*x^4 + 732780301186512843008*x^2 + 97322383751333736962);
 
oscar: Qx, x = PolynomialRing(QQ); K, a = NumberField(x^32 + 544*x^30 + 134096*x^28 + 19809216*x^26 + 1954391400*x^24 + 135851917760*x^22 + 6839621551840*x^20 + 252479744142208*x^18 + 6840623067852948*x^16 + 134829672062029120*x^14 + 1896195478908718624*x^12 + 18420184652256123776*x^10 + 117428677158132789072*x^8 + 452599597791669697152*x^6 + 915975376483141053760*x^4 + 732780301186512843008*x^2 + 97322383751333736962)
 

\( x^{32} + 544 x^{30} + 134096 x^{28} + 19809216 x^{26} + 1954391400 x^{24} + 135851917760 x^{22} + \cdots + 97\!\cdots\!62 \) Copy content Toggle raw display

sage: K.defining_polynomial()
 
gp: K.pol
 
magma: DefiningPolynomial(K);
 
oscar: defining_polynomial(K)
 

Invariants

Degree:  $32$
sage: K.degree()
 
gp: poldegree(K.pol)
 
magma: Degree(K);
 
oscar: degree(K)
 
Signature:  $[0, 16]$
sage: K.signature()
 
gp: K.sign
 
magma: Signature(K);
 
oscar: signature(K)
 
Discriminant:   \(152725625984366375633872344931707463035520335286488090842213114237373265215488\) \(\medspace = 2^{191}\cdot 17^{16}\) Copy content Toggle raw display
sage: K.disc()
 
gp: K.disc
 
magma: OK := Integers(K); Discriminant(OK);
 
oscar: OK = ring_of_integers(K); discriminant(OK)
 
Root discriminant:  \(258.22\)
sage: (K.disc().abs())^(1./K.degree())
 
gp: abs(K.disc)^(1/poldegree(K.pol))
 
magma: Abs(Discriminant(OK))^(1/Degree(K));
 
oscar: (1.0 * dK)^(1/degree(K))
 
Galois root discriminant:  $2^{191/32}17^{1/2}\approx 258.22438235302855$
Ramified primes:   \(2\), \(17\) Copy content Toggle raw display
sage: K.disc().support()
 
gp: factor(abs(K.disc))[,1]~
 
magma: PrimeDivisors(Discriminant(OK));
 
oscar: prime_divisors(discriminant((OK)))
 
Discriminant root field:  \(\Q(\sqrt{2}) \)
$\card{ \Gal(K/\Q) }$:  $32$
sage: K.automorphisms()
 
magma: Automorphisms(K);
 
oscar: automorphisms(K)
 
This field is Galois and abelian over $\Q$.
Conductor:  \(2176=2^{7}\cdot 17\)
Dirichlet character group:    $\lbrace$$\chi_{2176}(1,·)$, $\chi_{2176}(1155,·)$, $\chi_{2176}(137,·)$, $\chi_{2176}(1291,·)$, $\chi_{2176}(273,·)$, $\chi_{2176}(1427,·)$, $\chi_{2176}(409,·)$, $\chi_{2176}(1563,·)$, $\chi_{2176}(545,·)$, $\chi_{2176}(1699,·)$, $\chi_{2176}(681,·)$, $\chi_{2176}(1835,·)$, $\chi_{2176}(817,·)$, $\chi_{2176}(1971,·)$, $\chi_{2176}(953,·)$, $\chi_{2176}(2107,·)$, $\chi_{2176}(1089,·)$, $\chi_{2176}(67,·)$, $\chi_{2176}(1225,·)$, $\chi_{2176}(203,·)$, $\chi_{2176}(1361,·)$, $\chi_{2176}(339,·)$, $\chi_{2176}(1497,·)$, $\chi_{2176}(475,·)$, $\chi_{2176}(1633,·)$, $\chi_{2176}(611,·)$, $\chi_{2176}(1769,·)$, $\chi_{2176}(747,·)$, $\chi_{2176}(1905,·)$, $\chi_{2176}(883,·)$, $\chi_{2176}(2041,·)$, $\chi_{2176}(1019,·)$$\rbrace$
This is a CM field.
Reflex fields:  unavailable$^{32768}$

Integral basis (with respect to field generator \(a\))

$1$, $a$, $\frac{1}{17}a^{2}$, $\frac{1}{17}a^{3}$, $\frac{1}{289}a^{4}$, $\frac{1}{289}a^{5}$, $\frac{1}{4913}a^{6}$, $\frac{1}{4913}a^{7}$, $\frac{1}{83521}a^{8}$, $\frac{1}{83521}a^{9}$, $\frac{1}{1419857}a^{10}$, $\frac{1}{1419857}a^{11}$, $\frac{1}{24137569}a^{12}$, $\frac{1}{24137569}a^{13}$, $\frac{1}{410338673}a^{14}$, $\frac{1}{410338673}a^{15}$, $\frac{1}{6975757441}a^{16}$, $\frac{1}{6975757441}a^{17}$, $\frac{1}{118587876497}a^{18}$, $\frac{1}{118587876497}a^{19}$, $\frac{1}{2015993900449}a^{20}$, $\frac{1}{2015993900449}a^{21}$, $\frac{1}{34271896307633}a^{22}$, $\frac{1}{34271896307633}a^{23}$, $\frac{1}{582622237229761}a^{24}$, $\frac{1}{582622237229761}a^{25}$, $\frac{1}{99\!\cdots\!37}a^{26}$, $\frac{1}{99\!\cdots\!37}a^{27}$, $\frac{1}{16\!\cdots\!29}a^{28}$, $\frac{1}{16\!\cdots\!29}a^{29}$, $\frac{1}{28\!\cdots\!93}a^{30}$, $\frac{1}{28\!\cdots\!93}a^{31}$ Copy content Toggle raw display

sage: K.integral_basis()
 
gp: K.zk
 
magma: IntegralBasis(K);
 
oscar: basis(OK)
 

Monogenic:  Not computed
Index:  $1$
Inessential primes:  None

Class group and class number

not computed

sage: K.class_group().invariants()
 
gp: K.clgp
 
magma: ClassGroup(K);
 
oscar: class_group(K)
 

Unit group

sage: UK = K.unit_group()
 
magma: UK, fUK := UnitGroup(K);
 
oscar: UK, fUK = unit_group(OK)
 
Rank:  $15$
sage: UK.rank()
 
gp: K.fu
 
magma: UnitRank(K);
 
oscar: rank(UK)
 
Torsion generator:   \( -1 \)  (order $2$) Copy content Toggle raw display
sage: UK.torsion_generator()
 
gp: K.tu[2]
 
magma: K!f(TU.1) where TU,f is TorsionUnitGroup(K);
 
oscar: torsion_units_generator(OK)
 
Fundamental units:  not computed
sage: UK.fundamental_units()
 
gp: K.fu
 
magma: [K|fUK(g): g in Generators(UK)];
 
oscar: [K(fUK(a)) for a in gens(UK)]
 
Regulator:  not computed
sage: K.regulator()
 
gp: K.reg
 
magma: Regulator(K);
 
oscar: regulator(K)
 

Class number formula

\[ \begin{aligned}\lim_{s\to 1} (s-1)\zeta_K(s) =\mathstrut & \frac{2^{r_1}\cdot (2\pi)^{r_2}\cdot R\cdot h}{w\cdot\sqrt{|D|}}\cr $ not computed \end{aligned}\]

# self-contained SageMath code snippet to compute the analytic class number formula
 
x = polygen(QQ); K.<a> = NumberField(x^32 + 544*x^30 + 134096*x^28 + 19809216*x^26 + 1954391400*x^24 + 135851917760*x^22 + 6839621551840*x^20 + 252479744142208*x^18 + 6840623067852948*x^16 + 134829672062029120*x^14 + 1896195478908718624*x^12 + 18420184652256123776*x^10 + 117428677158132789072*x^8 + 452599597791669697152*x^6 + 915975376483141053760*x^4 + 732780301186512843008*x^2 + 97322383751333736962)
 
DK = K.disc(); r1,r2 = K.signature(); RK = K.regulator(); RR = RK.parent()
 
hK = K.class_number(); wK = K.unit_group().torsion_generator().order();
 
2^r1 * (2*RR(pi))^r2 * RK * hK / (wK * RR(sqrt(abs(DK))))
 
# self-contained Pari/GP code snippet to compute the analytic class number formula
 
K = bnfinit(x^32 + 544*x^30 + 134096*x^28 + 19809216*x^26 + 1954391400*x^24 + 135851917760*x^22 + 6839621551840*x^20 + 252479744142208*x^18 + 6840623067852948*x^16 + 134829672062029120*x^14 + 1896195478908718624*x^12 + 18420184652256123776*x^10 + 117428677158132789072*x^8 + 452599597791669697152*x^6 + 915975376483141053760*x^4 + 732780301186512843008*x^2 + 97322383751333736962, 1);
 
[polcoeff (lfunrootres (lfuncreate (K))[1][1][2], -1), 2^K.r1 * (2*Pi)^K.r2 * K.reg * K.no / (K.tu[1] * sqrt (abs (K.disc)))]
 
/* self-contained Magma code snippet to compute the analytic class number formula */
 
Qx<x> := PolynomialRing(QQ); K<a> := NumberField(x^32 + 544*x^30 + 134096*x^28 + 19809216*x^26 + 1954391400*x^24 + 135851917760*x^22 + 6839621551840*x^20 + 252479744142208*x^18 + 6840623067852948*x^16 + 134829672062029120*x^14 + 1896195478908718624*x^12 + 18420184652256123776*x^10 + 117428677158132789072*x^8 + 452599597791669697152*x^6 + 915975376483141053760*x^4 + 732780301186512843008*x^2 + 97322383751333736962);
 
OK := Integers(K); DK := Discriminant(OK);
 
UK, fUK := UnitGroup(OK); clK, fclK := ClassGroup(OK);
 
r1,r2 := Signature(K); RK := Regulator(K); RR := Parent(RK);
 
hK := #clK; wK := #TorsionSubgroup(UK);
 
2^r1 * (2*Pi(RR))^r2 * RK * hK / (wK * Sqrt(RR!Abs(DK)));
 
# self-contained Oscar code snippet to compute the analytic class number formula
 
Qx, x = PolynomialRing(QQ); K, a = NumberField(x^32 + 544*x^30 + 134096*x^28 + 19809216*x^26 + 1954391400*x^24 + 135851917760*x^22 + 6839621551840*x^20 + 252479744142208*x^18 + 6840623067852948*x^16 + 134829672062029120*x^14 + 1896195478908718624*x^12 + 18420184652256123776*x^10 + 117428677158132789072*x^8 + 452599597791669697152*x^6 + 915975376483141053760*x^4 + 732780301186512843008*x^2 + 97322383751333736962);
 
OK = ring_of_integers(K); DK = discriminant(OK);
 
UK, fUK = unit_group(OK); clK, fclK = class_group(OK);
 
r1,r2 = signature(K); RK = regulator(K); RR = parent(RK);
 
hK = order(clK); wK = torsion_units_order(K);
 
2^r1 * (2*pi)^r2 * RK * hK / (wK * sqrt(RR(abs(DK))))
 

Galois group

$C_{32}$ (as 32T33):

sage: K.galois_group(type='pari')
 
gp: polgalois(K.pol)
 
magma: G = GaloisGroup(K);
 
oscar: G, Gtx = galois_group(K); G, transitive_group_identification(G)
 
A cyclic group of order 32
The 32 conjugacy class representatives for $C_{32}$
Character table for $C_{32}$ is not computed

Intermediate fields

\(\Q(\sqrt{2}) \), \(\Q(\zeta_{16})^+\), \(\Q(\zeta_{32})^+\), \(\Q(\zeta_{64})^+\)

Fields in the database are given up to isomorphism. Isomorphic intermediate fields are shown with their multiplicities.

sage: K.subfields()[1:-1]
 
gp: L = nfsubfields(K); L[2..length(b)]
 
magma: L := Subfields(K); L[2..#L];
 
oscar: subfields(K)[2:end-1]
 

Frobenius cycle types

$p$ $2$ $3$ $5$ $7$ $11$ $13$ $17$ $19$ $23$ $29$ $31$ $37$ $41$ $43$ $47$ $53$ $59$
Cycle type R $32$ $32$ $16^{2}$ $32$ $32$ R $32$ $16^{2}$ $32$ ${\href{/padicField/31.4.0.1}{4} }^{8}$ $32$ $16^{2}$ $32$ ${\href{/padicField/47.8.0.1}{8} }^{4}$ $32$ $32$

In the table, R denotes a ramified prime. Cycle lengths which are repeated in a cycle type are indicated by exponents.

# to obtain a list of $[e_i,f_i]$ for the factorization of the ideal $p\mathcal{O}_K$ for $p=7$ in Sage:
 
p = 7; [(e, pr.norm().valuation(p)) for pr,e in K.factor(p)]
 
\\ to obtain a list of $[e_i,f_i]$ for the factorization of the ideal $p\mathcal{O}_K$ for $p=7$ in Pari:
 
p = 7; pfac = idealprimedec(K, p); vector(length(pfac), j, [pfac[j][3], pfac[j][4]])
 
// to obtain a list of $[e_i,f_i]$ for the factorization of the ideal $p\mathcal{O}_K$ for $p=7 in Magma:
 
p := 7; [<pr[2], Valuation(Norm(pr[1]), p)> : pr in Factorization(p*Integers(K))];
 
# to obtain a list of $[e_i,f_i]$ for the factorization of the ideal $p\mathcal{O}_K$ for $p=7$ in Oscar:
 
p = 7; pfac = factor(ideal(ring_of_integers(K), p)); [(e, valuation(norm(pr),p)) for (pr,e) in pfac]
 

Local algebras for ramified primes

$p$LabelPolynomial $e$ $f$ $c$ Galois group Slope content
\(2\) Copy content Toggle raw display Deg $32$$32$$1$$191$
\(17\) Copy content Toggle raw display 17.8.4.2$x^{8} + 2023 x^{4} - 49130 x^{2} + 250563$$2$$4$$4$$C_8$$[\ ]_{2}^{4}$
17.8.4.2$x^{8} + 2023 x^{4} - 49130 x^{2} + 250563$$2$$4$$4$$C_8$$[\ ]_{2}^{4}$
17.8.4.2$x^{8} + 2023 x^{4} - 49130 x^{2} + 250563$$2$$4$$4$$C_8$$[\ ]_{2}^{4}$
17.8.4.2$x^{8} + 2023 x^{4} - 49130 x^{2} + 250563$$2$$4$$4$$C_8$$[\ ]_{2}^{4}$